Select any two CPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Xeon Processor 3.0GHz Pentium D Extreme Edition 3.2GHz
Red Dead Redemption 2 1591% 1371%
Call of Duty: Modern Warfare 1154% 991%
Zombieland: Double Tap - Road Trip 1591% 1371%
Cyberpunk 2077 1337% 1150%
Microsoft Flight Simulator 1739% 1500%
Borderlands 3 1591% 1371%
FIFA 20 1110% 953%
The Outer Worlds 1380% 1188%
eFootball PES 2020 1291% 1110%
Ghost Recon Breakpoint 1768% 1525%

In terms of overall gaming performance, the Intel Pentium D Extreme Edition 3.2GHz is marginally better than the Intel Xeon Processor 3.0GHz when it comes to running the latest games. This also means it will be less likely to bottleneck more powerful GPUs, allowing them to achieve more of their gaming performance potential.

The Pentium D Extreme was released less than a year after the Xeon Processor 3.0GHz, and so they are likely to have similar levels of support, and similarly optimized performance when running the latest games.

The Xeon Processor 3.0GHz and the Pentium D Extreme both have 1 cores, and so are quite likely to struggle with the latest games, or at least bottleneck high-end graphics cards when running them. With a decent accompanying GPU, the Xeon Processor 3.0GHz and the Pentium D Extreme may still be able to run slightly older games fairly effectively.

More important for gaming than the number of cores and threads is the clock rate. Problematically, unless the two CPUs are from the same family, this can only serve as a general guide and nothing like an exact comparison, because the clock cycles per instruction (CPI) will vary so much.

The Xeon Processor 3.0GHz and Pentium D Extreme are not from the same family of CPUs, so their clock speeds are by no means directly comparable. Bear in mind, then, that while the Pentium D Extreme has a 0.2 GHz faster frequency, this is not always an indicator that it will be superior in performance, despite frequency being crucial when trying to avoid GPU bottlenecking. As such, we need to look elsewhere for more reliable comparisons.

Aside from the clock rate, the next-most important CPU features for PC game performance are L2 and L3 cache size. Faster than RAM, the more cache available, the more data that can be stored for lightning-fast retrieval. L1 Cache is not usually an issue anymore for gaming, with most high-end CPUs eking out about the same L1 performance, and L2 is more important than L3 - but L3 is still important if you want to reach the highest levels of performance. Bear in mind that although it is better to have a larger cache, the larger it is, the higher the latency, so a balance has to be struck.

The Xeon Processor 3.0GHz has a 2046 KB bigger L2 cache than the Pentium D Extreme, but neither of the CPUs have L3 caches, so the Xeon Processor 3.0GHz wins out in this area with its larger L2 cache.

The maximum Thermal Design Power is the power in Watts that the CPU will consume in the worst case scenario. The lithography is the semiconductor manufacturing technology being used to create the CPU - the smaller this is, the more transistors that can be fit into the CPU, and the closer the connections. For both the lithography and the TDP, it is the lower the better, because a lower number means a lower amount of power is necessary to run the CPU, and consequently a lower amount of heat is produced.

The Xeon Processor 3.0GHz has a 811 Watt lower Maximum TDP than the Pentium D Extreme, and was created with a 40 nm smaller manufacturing technology. What this means is the Xeon Processor 3.0GHz will consume significantly less power and consequently produce less heat, enabling more prolonged computational tasks with fewer adverse effects. This will lower your yearly electricity bill significantly, as well as prevent you from having to invest in extra cooling mechanisms (unless you overclock).

CPU Core Details

CPU CodenameIrwindaleSmithfield XE
MoBo SocketSocket 604LGA 775/ Socket T
Notebook CPUnono
Release Date14 Feb 200526 May 2005
CPU LinkGD LinkGD Link
Approved

CPU Technical Specifications

CPU Cores1vs1
Clock Speed3 GHzvs3.2 GHz
Turbo Frequency-vs-
System Bus -vs800 MHz
Max TDP110 Wvs921 W
Lithography90 nmvs130 nm
Bit Width-vs32 Bit
Voltage Range-vs1.55V KB
Max Temperature-vs64°C
Virtualization Technologynovsno
Comparison

CPU Cache and Memory

L1 Cache Size16 KBvs32 KB
L2 Cache Size2048 KBvs2 KB
L3 Cache Size-vs-
ECC Memory Supportnovsno
Comparison

CPU Graphics

Graphicsno
Base GPU Frequency-vs-
Max GPU Frequency-vs-
DirectX-vs-
Displays Supported-vs-
Comparison

CPU Package and Version Specifications

Package Size-vs37.5mm x 37.5mm
Revision-vs-
PCIe Revision-vs-
PCIe Configurations-vs-

Gaming Performance Value

Performance Value

CPU Mini Review

Mini ReviewThe Xeon is a brand of multiprocessing- or multi-socket-capable x86 microprocessors from Intel Corporation targeted at the non-consumer workstation, server, and embedded system markets.The Pentium Extreme Edition was introduced at the Spring 2005 Intel Developers Forum, not to be confused with the "Pentium 4 Extreme Edition" (an earlier, single-core processor occupying the same niche). The processor was based on the dual-core Pentium D branded Smithfield, but with Hyper-threading enabled, thus any operating system saw four logical processors (two physical and two virtual). It also had an unlocked multiplier to allow overclocking. It was initially released as Intel Pentium Extreme Edition 840 at 3.20 GHz, in early 2005, at a price point of $999.99 (OEM price) or $1,200 (retail). The only chipsets that worked with the Extreme Edition 840 were Intel's 955X, NVIDIA's nForce4 SLI Intel Edition, and ATi Radeon Xpress 200. Using a Pentium Extreme Edition branded CPU with an Intel 945-series chipset will disable Hyper-threading effectively turning the processor into a Pentium D branded equivalent.

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